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Route Reliability

Las Vegas → STS

LAS–STS · 454 miles · Harry Reid International Airport to STS Airport

80
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
3 min
Average arrival delay
1.7%
Cancelled
408
Flights in the data

Data through May 2026.

Airlines on this route

  • Alaska Airlines81% on time · 353 flights
  • Southwest Airlines87% on time · 55 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

The late departure is the smart one here.

LAS–STS flights departing between 6–9 PM arrived on time 96% of the time, versus 76% between 3–6 PM.

Friday is doing you no favors.

LAS–STS flights arrived on time 91% of the time on Saturdays and just 71% on Fridays. That gap is worth planning around.

Trending in the right direction.

LAS–STS flights arrived on time 87% of the time over the last three months in the data, compared with 78% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon80%(56 flights)
  • Tue85%(53 flights)
  • Wed83%(54 flights)
  • Thu76%(59 flights)
  • Fri71%(58 flights)
  • Sat91%(58 flights)
  • Sun83%(60 flights)
On-time by departure window
  • 9 AM–12 PM—(8 flights)
  • 12–3 PM83%(194 flights)
  • 3–6 PM76%(147 flights)
  • 6–9 PM96%(27 flights)
  • 9 PM–12 AM82%(22 flights)
On-time trend by month
87%
May

Jun 77% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%30
July 202580%30
August 202584%31
September 202567%30
October 202571%31
November 202596%25
December 202570%27
January 202692%24
February 202671%24
March 202690%31
April 202685%53
May 202687%62

Keep nerding

Based on 408 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.